Answered: The locomotive of a freight train…

University Physics Volume 1

18th Edition

ISBN:9781938168277

Author:William Moebs, Samuel J. Ling, Jeff Sanny

Publisher:William Moebs, Samuel J. Ling, Jeff Sanny

Chapter8: Potential Energy And Conservation Of Energy

Section: Chapter Questions

Problem 57P: In a Coyote/Road Runner cartoon clip (https://openstaxcollege.org/l/21coyroadcarcl), a spring...

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Write the Given, Requirements, Figure (FBD), Formula, and Solutions. The locomotive of a freight train exerts a constant force of 60,000N on the train while drawing it at 50 km/hr on a level track. How much work does it do in a distance of 1 km? A piano mover rolls a 200 kg piano at constant speed up a ramp 2m long at an angle of 30 degrees with the horizontal. a) What force does he apply to the piano?, b) How much work does he do? A factory worker pushes a 40 kg box a distance of 5 meter along a level floor, at constant speed, by pushing horizontally on it. The coefficient of friction between the box and the floor is 0.25. What force is required? How much work does the man do? A water skier is pulled by a towrope behind a boat. He skies off the side, and the rope makes an angle of 20 degrees with his direction of motion. The tension in the rope is 120N. How much work is done by the skier during a displacement of 500 meters?

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